1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17 package com.android.incallui.videotech.empty; 18 19 import android.content.Context; 20 import android.support.annotation.NonNull; 21 import android.support.annotation.Nullable; 22 import android.telecom.PhoneAccountHandle; 23 import com.android.dialer.common.Assert; 24 import com.android.incallui.video.protocol.VideoCallScreen; 25 import com.android.incallui.video.protocol.VideoCallScreenDelegate; 26 import com.android.incallui.videotech.VideoTech; 27 import com.android.incallui.videotech.utils.SessionModificationState; 28 29 /** Default video tech that is always available but doesn't do anything. */ 30 public class EmptyVideoTech implements VideoTech { 31 32 @Override 33 public boolean isAvailable(Context context, PhoneAccountHandle phoneAccountHandle) { 34 return false; 35 } 36 37 @Override 38 public boolean isTransmittingOrReceiving() { 39 return false; 40 } 41 42 @Override 43 public boolean isSelfManagedCamera() { 44 return false; 45 } 46 47 @Override 48 public boolean shouldUseSurfaceView() { 49 return false; 50 } 51 52 @Override 53 public boolean isPaused() { 54 return false; 55 } 56 57 @Override 58 public VideoCallScreenDelegate createVideoCallScreenDelegate( 59 Context context, VideoCallScreen videoCallScreen) { 60 throw Assert.createUnsupportedOperationFailException(); 61 } 62 63 @Override 64 public void onCallStateChanged( 65 Context context, int newState, PhoneAccountHandle phoneAccountHandle) {} 66 67 @Override 68 public void onRemovedFromCallList() {} 69 70 @Override 71 public int getSessionModificationState() { 72 return SessionModificationState.NO_REQUEST; 73 } 74 75 @Override 76 public void upgradeToVideo(@NonNull Context context) {} 77 78 @Override 79 public void acceptVideoRequest(@NonNull Context context) {} 80 81 @Override 82 public void acceptVideoRequestAsAudio() {} 83 84 @Override 85 public void declineVideoRequest() {} 86 87 @Override 88 public boolean isTransmitting() { 89 return false; 90 } 91 92 @Override 93 public void stopTransmission() {} 94 95 @Override 96 public void resumeTransmission(@NonNull Context context) {} 97 98 @Override 99 public void pause() {} 100 101 @Override 102 public void unpause() {} 103 104 @Override 105 public void setCamera(@Nullable String cameraId) {} 106 107 @Override 108 public void setDeviceOrientation(int rotation) {} 109 110 @Override 111 public void becomePrimary() {} 112 113 @Override 114 public com.android.dialer.logging.VideoTech.Type getVideoTechType() { 115 return com.android.dialer.logging.VideoTech.Type.NONE; 116 } 117 } 118
